Quote Originally Posted by cropwell View Post
If you run your target bolt head axially on to the sensor, one day you will jog onto it and crush the coil in the head.
Rob common sense to me and can't believe MD or anyone would position any switch not to mention Prox switches so they could be crashed into.!

Another reason is the sensing repeatabilty is actually better when sliding over rather than approaching head on. Most Quality Prox switches data sheets will give specs on both types of approach.